<html>
<body>
  <iframe sandbox="allow-scripts" src="test_sandboxed_iframe.html"
          style="display:block; border: 1px; width: 400px; height: 400px">
  </iframe>
  <iframe sandbox="allow-scripts" src="test_sandboxed_iframe.html"
          style="display:block; border: 1px; width: 400px; height: 400px">
  </iframe>
</body>
</html>
